Pita Taufatofua, who lit the Internet on fire with his coconut-oiled, shirtless walk as Tonga's flag-bearer during the Pyeongchang Winter Olympics opening ceremony, had two goals for his cross-country skiing event on Friday.

They were not lofty — but that makes sense for a man who has tried skiing on snow for only three months.

Under the Geneva Conventions, warring parties are responsible for providing medical care to civilians in the territory they control.

But what happens if the warring parties don't have the will or the capacity to treat the civilian casualties? Or if they could not care less about the civilians?

That's a question that erupted in Iraq late in 2016, when the Iraqi military launched a massive military offensive to retake the city of Mosul from ISIS — the Islamic State of Iraq and the Levant. ISIS had seized control of Mosul two years earlier.

As the news broke of a school shooting in Parkland, Fla., on Wednesday, hundreds of Twitter accounts believed to be under Russian sway pivoted.

Many had been tweeting about places like Syria and Ukraine — countries where Russia is seeking to strengthen its influence. Suddenly the accounts shifted to hashtags like #guncontrol, #guncontrolnow and #gunreformnow. Tweets mentioning Nikolas Cruz, the name of the shooting suspect, spiked.

During a fellowship to Harvard, writer Tayari Jones spent months and months studying the intersection of race and criminal justice. She learned a lot about the American criminal justice system. She knew all the grim statistics. But she was still searching for the inspiration for a novel she'd hope to write: one that involved an individual's encounter with the system, and the subsequent ripples that touch that person's community.

Then, while she was in Atlanta visiting her mother, she found what she needed during a routine trip to the shopping mall.